(1) Lecture Notes on Operator Theory LNOT.pdf
(2) Some recent developments in Toeplitz operator theory TOT.pdf
(3) Fredholm and Weyl Theory FWT.pdf
(1) Hyponormality and spectra of Toeplitz operators (with D.R. Farenick)
Trans. Amer. Math. Soc. 348(10) (1996), 4153-4174 FL1.pdf
(2) Normal Toeplitz matrices (with D.R. Farenick, M. Krupnik and N. Krupnik)
SIAM J. Matrix Anal. Appl. 17(4) (1996), 1037-1043 FKKL.pdf
(3) Another note on Weyl's theorem (with R.E.Harte)
Trans. Amer. Math. Soc. 349(5) (1997), 2115-2124, HaL1.pdf
(4) Hyponormality of Toeplitz operators with polynomial symbols (with I.S. Hwang and I.H. Kim)
Math. Ann. 313(2) (1999), 247-261 HKL1.pdf
(5) The spectrum is continuous on the set of p-hyponormal operators (with I.S. Hwang)
Math. Z. 235 (2000), 151-157, HL1.pdf
(6) Joint hyponormality of Toeplitz pairs (with R.E. Curto)
Memoirs of Amer. Math. Soc. 150 (2001), No. 712, x+65 pp. Mams01.pdf
(7) Hyponormality of Toeplitz operators with polynomila symbols: an extremal case (with I.S. Hwang, and I.H. Kim)
Math. Nachr. 231 (2001), 25-38 2001MN.pdf
(8) Hyponormality of trigonometric Toeplitz operators (with I.S. Hwang)
Trans. Amer. Math. Soc. 354 (2002), 2461-2474 HL2.pdf
(9) Subnormality and k-hyponormality of Toeplitz operators: a brief survey and open questions (with R.E. Curto)
Operator theory and Banach algebras (Rabat, 1999), 73-81, Theta, Bucharest, 2003 2003BC.pdf
(10) k-hyponormality of finite perturbations of unilateral weighted shifts (with R.E. Curto)
Trans. Amer. Math. Soc. 357(12)(2005), 4719-4737 CuLe6.pdf
(11) Cowen sets for Toeplitz operators with finite rank selfcommutators
J. Operator Theory 54 (2005), 261-267 2005JOT.pdf
(12) Hyponormality of Toeplitz operators with rational symbols (with I.S. Hwang)
Math. Ann. 335 (2006), 405-414 06HL1.pdf
(13) Hyponormal Toeplitz operators with rational symbols (with I.S. Hwang)
J. Operator Theory 56 (2006), 47-58 2006JOT.pdf
(14) On a question of Brown, Douglas, and Fillmore (with J. Kim)
J. Math. Anal. Appl. 336 (2007), 1486-1488 2007JMAA.pdf
(15) Hyponormal operators with finite rank-two selfcommutators (with S.H. Lee)
J. Math. Anal. Appl. 351 (2009), 616-626 2009JMAA.pdf
(16) Hyponormality and subnormality of block Toepltz operators (with R.E. Curto and I.S. Hwang)
Adv. Math. 230 (2012), 2094-2151, 12AIM.pdf
(17) Which subnormal Toeplitz operators are either normal or analytic? (with R.E. Curto and I.S. Hwang)
J. Funct. Anal. 263(8)(2012), 2333-2354, 12JFA.pdf
(18) Hyponormal Toeplitz operators with matrix-valued circulant symbols (with I.S. Hwang and D-O. Kang)
Complex Anal. Oper. Theory 7 (2013), 843-861 2013CAOT.pdf
(19) Subnormal and quasinormal Toeplitz operators wth matrix-valued rational symbols (with R.E. Curto, I.S. Hwang and D. Kang)
Adv. Math. 255 (2014), 561-585, 14AIM.pdf
(20) A subnormal Toeplitz completion problem (with R.E. Curto and I.S. Hwang)
Operator theory in harmonic and non-commutative analysis, 87-110, Oper. Theory Adv. Appl.,240, Birkhauser/Springer, Cham, 2014 2014IWOTA.pdf
(21) Hyponormality of bounded-type Toeplitz operators (with R.E. Curto and I.S. Hwang)
Math. Nachr. 287 (2014), 1207-1222 2014MN.pdf
(22) An answer to a question of A. Lubin: The lifting problem for commuting subnormals (with S.H. Lee and J. Yoon)
Israel J. Math. 222 (2017), 201-222, 17Lub.pdf
(23) Matrix functions of bounded type: An interplay between function theory and operator theory (with R.E. Curto and I.S. Hwang)
Memoirs of Amer. Math. Soc. 260 (2019), No. 1253, x+100 pp. Mams19.pdf
(24) The Beurling-Lax-Halmos Theorem for infinite multipliity (with R.E. Curto and I.S. Hwang)
J. Funct. Anal. 280(6) (2021), Art. ID 108884, 101 pp, 21JFApdf
(25) Operator-valued rational functions (with R.E. Curto and I.S. Hwang)
J. Funct. Anal. 283(9) (2022), Art. ID 109640. 22JFApdf
(26) Recent developments in the interplay between function theory and operator theory for block Toeplitz, Hankel, and model operators (with R. Curto, I.S. Hwang),
Function Spaces, Theory and Applications, Fields Institute Communications, vol 87, 271-313, Springer, New York, 2023 2023Fields.pdf
(27) Higher-order de Branges-Rovnyak and sub-Bergman spaces (with C. Gu, I.S. Hwang, J. Park),
Adv. Math. 428 (2023), Art. ID 109143, 49pp 2023aim.pdf
(28) Circle companions of Hardy spaces of the unit disk (with R. Curto, I.S. Hwang, S. Kim),
J. Funct. Anal. 285 (2023), Art. ID 110159, 23pp 2023JFA.pdf